Changes with Apache 2.2.4

  *) mod_isapi: Correctly present SERVER_PORT_SECURE.

     PR: 40573.  [Matt Eaton <asf divinehawk.com>]

  *) Allow htcacheclean, httxt2dbm, and fcgistarter to link apr/apr-util

     statically like the older support programs.

     [Eric Covener <covener gmail.com>]

  *) core: Fix issue which could cause piped loggers to be orphaned and never

     terminate after a graceful restart.  PR 40651.  [Joe Orton, Ruediger Pluem]

  *) core: Fix address-in-use startup failure caused by corruption of the list of

     listen sockets in some configurations with multiple generic Listen

  *) core: Fix address-in-use startup failure caused by corruption of the list

     of listen sockets in some configurations with multiple generic Listen

     directives.  [Jeff Trawick]

  *) mod_headers: Support regexp-based editing of HTTP headers.  [Nick Kew]

     PR 40323.  [Jeff Trawick]

  *) mod_isapi: Avoid double trailing slashes in HSE_REQ_MAP_URL_TO_PATH

     support.  Also corrects the slashes for Windows.  PR 15993.  [William Rowe]

     support.  Also corrects the slashes for Windows.

     PR 15993.  [William Rowe]

  *) mod_isapi: Handle "HTTP/1.1 200 OK" style status lines correctly, the

     token parser worked while the resulting length was misinterpreted.

     PR 29098.  [Brock Bland <bbland serena.com>]

  *) mod_isapi: Return 0 (failure) for more of the various ap_pass_brigade

     attempts to stream the response at the client.  PR 30022.  [William Rowe]

     attempts to stream the response at the client.  Log these as well.

     PR 30022, 40470.  [William Rowe, Matt Eaton <asf divinehawk.com>]

  *) mod_isapi: Ensure we walk through all the methods the developer may have

     employed to report their HTTP status result code.